Adding Positive and Negative Rational Numbers

Which of the following is NOT a type of rational number?

• Irrational numbers

• Terminating decimals

• Whole numbers

• Integers

What is the first step when adding fractions with different denominators?

• Add the numerators directly

• Find a common denominator

• Convert fractions to decimals

• Subtract the smaller fraction from the larger one

What is the least common multiple of 3 and 6?

• 3

• 12

• 6

• 9

What is the result of adding -8/3 and 5/6?

• -11/6

• -1 5/6

• -1 1/6

• -2/3

When adding decimals, what is the most important thing to remember?

• Add the whole numbers first

• Ignore the decimal points

• Line up the decimal points

• Convert them to fractions first

What is the result of adding -4.05 and 7.62?

• -3.57

• 3.57

• 11.67

• 1.57

How do you handle adding a negative and a positive decimal?

• Ignore the negative sign

• Add them directly

• Convert them to fractions

• Subtract the smaller absolute value from the larger one

What is the first step when evaluating an algebraic expression with given variable values?

• Add all the constants

• Simplify the expression

• Convert the expression to a fraction

• Substitute the given values into the expression

What is the result of evaluating 2x + y when x = 1/4 and y = -3/2?

• 2

• 1

• -1

• 0

Why is it helpful to use parentheses when substituting values into an expression?

• To convert the expression to a fraction

• To add the constants first

• To keep the operations organized

• To make the expression look neat